PHP implements Mysql simple operation class, phpmysql_PHP tutorial

php implements the Mysql simple operation class. phpmysql

has its own encapsulated Mysql simple operation class, which has been stuffed into the Ben framework and is written based on PDO. The code style is somewhat nonsensical. . .

mysql.class.php

<&#63;php
class mysql extends PDO{
  public $server;
  public $database;
  public $user;
  public $password;
  public $sql;
  public function __construct($server,$database,$user,$password,$port=3306){
    $this->server = $server;
    $this->database = $database;
    $this->user = $user;
    $this->password = $password;
    parent::__construct("mysql:host=$server;port=$port;dbname=$database",$user,$password);
    $this->query('SET NAMES utf8');
  }
  public function drop($table){
    $sql = 'DROP TABLE '.$table.';';
    $re = $this->query($sql);
    if($re){
      return true;
    }else{
      return false;
    }
  }
  public function insert($table,$name,$value=null){
    $sql = "INSERT INTO ".$table.'(';
    if($value == null){
    $arrname = array_keys($name);
    $arrvalue = array_values($name);
    }else{
    $arrname = explode('|', $name);
    $arrvalue = explode('|', $value);
    }
    for($i=0;$i<count($arrname);$i++){
      if($i==count($arrname)-1){
        $sql = $sql.$arrname[$i];
      }else{
        $sql = $sql.$arrname[$i].",";
      }
    }
    $sql = $sql.")VALUES(";
    for($i=0;$i<count($arrvalue);$i++){
      if($i==count($arrvalue)-1){
        $sql = $sql."'".$arrvalue[$i]."'";
      }else{
        $sql = $sql."'".$arrvalue[$i]."',";
      }
    }
    $sql .=");";
    $re = $this->query($sql);
    if($re){
      return true;
    }else{
      return false;
    }
  }
  public function delete($table,$Conditionsname,$Conditionsvalue=null){
    if($Conditionsvalue!=null){
      $sql = "DELETE FROM ".$table." WHERE ".$Conditionsname."='".$Conditionsvalue."';";
    }else{
      $sql = "DELETE FROM ".$table." WHERE ";
      $arrname = array_keys($Conditionsname);
      $arrvalue = array_values($Conditionsname);
      for($i=0;$i<count($arrname);$i++){
        if($i==count($arrname)-1){
          $sql.=$arrname[$i].'='."'".$arrvalue[$i]."'";
        }else{
          $sql.=$arrname[$i].'='."'".$arrvalue[$i]."',";
        }
      }
      $sql.=';';
    }
    $re = $this->query($sql);
    if($re){
      return true;
    }else{
      return false;
    }
  }
  public function select($table,$name,$Conditionsname,$Conditionsvalue=null){
    if($Conditionsvalue!=null){
      $sql = "SELECT ".$name." FROM ".$table." WHERE ".$Conditionsname."='".$Conditionsvalue."';";
    }else{
      $sql = "SELECT ".$name." FROM ".$table." WHERE ";
      $arrname = array_keys($Conditionsname);
      $arrvalue = array_values($Conditionsname);
      for($i=0;$i<count($arrname);$i++){
        if($i==count($arrname)-1){
          $sql.=$arrname[$i].'='."'".$arrvalue[$i]."'";
        }else{
          $sql.=$arrname[$i].'='."'".$arrvalue[$i]."' and ";
        }
      }
      $sql.=';';
    }
    $re = $this->query($sql);
    $row = $re->fetch();
    return $row[$name];
  }
  public function update($table,$name,$value,$Conditionsname,$Conditionsvalue=null){
    if($Conditionsvalue!=null){
      $sql = "UPDATE ".$table." SET ".$name."= '".$value."' WHERE ".$Conditionsname."='".$Conditionsvalue."';";
    }else{
      $sql = "UPDATE ".$table." SET ".$name."= '".$value."' WHERE ";
      $arrname = array_keys($Conditionsname);
      $arrvalue = array_values($Conditionsname);
      for($i=0;$i<count($arrname);$i++){
        if($i==count($arrname)-1){
          $sql.=$arrname[$i].'='."'".$arrvalue[$i]."'";
        }else{
          $sql.=$arrname[$i].'='."'".$arrvalue[$i]."' and ";
        }
      }
      $sql.=';';
    }
    $re = $this->query($sql);
    if($re){
      return true;
    }else{
      return false;
    }
  }
  public function group($table,$name){
    $sql = "SELECT ".$name." FROM ".$table.";";
    $return = array();
    $re = $this->query($sql);
    while($row = $re->fetch(PDO::FETCH_ASSOC)){
      array_push($return,$row[$name]);
    }
    return $return;
  }
  public function fetchall($sql){
    $return = array();
    $re = $this->query($sql);
    while($row = $re->fetch(PDO::FETCH_ASSOC)){
      array_push($return,$row);
    }
    return $return;
  }
}

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